Door-lock for revolving drums



R. F. SETTLAGE.

DOOR LOCK FOR REVOLVING DRUMS.

APPLICATION FILED OCT 17. I917.

Patented July 13, 1920.

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RUDOLPH F. SETTLAGE, OF ALTON, ILLINOIS, ASS'IGNGR T0 BROKATU-EDEN COMPANY, A COBPORA'IIQN U35 DELAWARE.

DOOR-LOCK FOR REVOLVING DRUMS,

Specification of Letters Patent.

Patented July 13, 1920.

Application filed Detober 17, 1917. Serial No. 197.031.

To all whom it may concern:

lie it known that i, linnonrir l. Sn'r'rmom, a citizen of the United States, and resident of Alton, Illinois have invented certain new and useful Improvements in Door-Locks for Revolving Drums, of which the following is a specification.

This invention relates to improvements in door locks for revolving drums, and hi for its object a locking mechanism which is connected to the doors of drums such as those used in washing machines, tumbling drums or in fact any style of drum which is rotated on an axis and the doors being located on the periphery.

The essential feature of my invention is to 1 construct a lock which is operated in eccentric fashion bringing a hook under the flange of the drum head so as to firmly lock the door in position on the peripheral flange of the head. This lock is specially arranged in parts, one located on each side so as to lock the door firmly against both heads.

The arrangement of. the lock is such that by operating a pivotal winged member the locking bar may be either released or placed in locked position and when the bar is brought to its locked position, the wings of the winged member will then be on the reverse side of the locking bar.

Figure 1, is a perspective view of my improved lock shown in position on the door ready to be placed in locked position.

Fig. 2, is a side view of the same showing the drum and door in section.

Fig. 3, is a top plan view.

Fig. 4, is detail enlarged sectional view showing the pivotal arrangement and the friction bulge made use of for holding the two members in alinement.

Fig. 5, is a cross-sectional view of the same taken on the line 55 of Fig. 4.

Fig. 6, is an end view of a portion of the drum and door showing the position of the lock.

Referring to the drawings, 7 indicates the ends or heads of a drum, the outer periphery of which is formed into a projecting flange 8, on this flange is securely fastened the outer covering, a portion of which is left uncovered and which space is occupied by the doors which are preferably ar a e in w m m ere 9 an anymanner well-known to the trade.

arranged to overlap the end 12 of the door member 9.

On the top of the overlapping portion 11 is firmly attached my improved lock which consists of a sliding locking bar 13 and a pivoted winged member 14. The winged member 14 is pivoted at its center to the material forming the door, the rivet 15 which supports the same together has its top 16 preferably counter-sunk so as to allow free passage for the movement of the bar 13.

This member 14 is preferably stamped out of sheet material and has a pair of upwardly bent wings 17 which act as finger pieces by which the member 14 ma be turned in order to operate the locking bar 13.

The locking bar 13 consists of an elongated strip of material which is pivotally connected by the rivet 18 to the member 14. The bar is provided with an elongated slot 19 which is held in position on the top of the door by the rivet 20, yet sufficient freedom is permitted to allow the bar to easily slide under the head of the rivet. The bar is bent at the point indicated by the numeral 21 so as to allow free movement of the member 1 1, under said bar when the same is turned to a locked position; and the free end of the bar is formed into a hook 22 which is designed to pass under the peripheral flange 8 of the drum head. At a convenient point in the bottom of the bar 13 I provide an indentation or recess 23 and on the plate portion of the member 14, I provide a slight bulge 24, these are arranged to register with each other so that when the plate and bar are brought into an alinement the same will frictionally seat themselves together forming a frictional lock so as to hold both members in alinement and prevent the same from shifting. This same structure may be on the reverse side of the plate so that when the member 14 is turned to a reverse position bringing the Wing 17 on the apposite side and the hook under the flange that it will keep the same in locked position during the rotation of the drum on its axis.

p The most essentialfeatnre of my invention is to construct a lock which contacts with the flange of the drum thereby making.

a positive means for snppoi'tingthedoors in locked position.

Having fully described my invention What I claim is:

A lock of the class described comprising in combination with a receptacle and a removable cover, of an elongated slightly bent locking bar slidably supportednpon the c0ve'r, the one end of the bar foi med V Witnesses into a hook which is adapted to fit over the "which the same is manipulated.

In testimony whereof, I havesigned my name to this specification, in presence of 25 two subscrlblng witnesses.

RUDOLTPH b".

SETTLAGE ALFRED A. EIcKs, WALTER C. STEIN, 

